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CVE-2023-38497

Publication date 3 August 2023

Last updated 24 July 2024

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

7.3 · High

Score breakdown

Cargo downloads the Rust project’s dependencies and compiles the project. Cargo prior to version 0.72.2, bundled with Rust prior to version 1.71.1, did not respect the umask when extracting crate archives on UNIX-like systems. If the user downloaded a crate containing files writeable by any local user, another local user could exploit this to change the source code compiled and executed by the current user. To prevent existing cached extractions from being exploitable, the Cargo binary version 0.72.2 included in Rust 1.71.1 or later will purge caches generated by older Cargo versions automatically. As a workaround, configure one's system to prevent other local users from accessing the Cargo directory, usually located in `~/.cargo`.

Read the notes from the security team

Status

Package Ubuntu Release Status
cargo 24.04 LTS noble Not in release
23.10 mantic Not in release
23.04 lunar Ignored
22.04 LTS jammy
20.04 LTS focal
18.04 LTS bionic
16.04 LTS xenial
14.04 LTS trusty Ignored
rust-cargo 24.04 LTS noble
Vulnerable
23.10 mantic Ignored
23.04 lunar Ignored
22.04 LTS jammy
20.04 LTS focal Not in release
18.04 LTS bionic Ignored
16.04 LTS xenial Ignored
14.04 LTS trusty Ignored
rustc 24.04 LTS noble
Vulnerable
23.10 mantic Ignored
23.04 lunar
Not affected
22.04 LTS jammy
Not affected
20.04 LTS focal
Not affected
18.04 LTS bionic
Not affected
16.04 LTS xenial
Not affected
14.04 LTS trusty
Not affected

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Notes

sbeattie

cargo in mantic was merged into rustc

alexmurray

requires an update to the tar rust dependency (tar 0.4.39) - this is packaged as rust-tar in Ubuntu but only the rust-cargo package appears to use this - rustc and cargo both vendor a copy of this package

litios

a workaround for this issue is to prevent access to the ~/.cargo directory to other users.

Severity score breakdown

Parameter Value
Base score 7.3 · High
Attack vector Local
Attack complexity Low
Privileges required Low
User interaction Required
Scope Unchanged
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H